Possible but I would find it very very weird that a pirate of Kaido's caliber does not have advanced weaponry haki (ryo) it seems to me to be abused anyway.
Luffy will have it but not him? For me it's as if I was told that Kaido has no awakening in Zoan It would seem very abused
Luffy will have it but not him? For me it's as if I was told that Kaido has no awakening in Zoan It would seem very abused